Device for needle biopsy with integrated needle protection
First Claim
1. A needle biopsy device comprising:
- a handle including;
an axial lumen spanning the handle;
a release member disposed at a proximal end of the handle; and
a ring engagable member disposed within the axial lumen and located distal to the release member;
a sheath disposed at a distal end of the handle, coaxial with the axial lumen, and extending distally from the distal end of the handle;
a removable needle assembly including;
an elongated needle comprising a protrusion proximate to a distal end of the needle, the protrusion having an outer diameter; and
a needle housing member coupled to a proximal end of the needle, the needle housing member configured to releasably engage the release member; and
a needle protection member including;
a needle protection shaft surrounding a portion of the elongated needle and comprising a lumen with an inner diameter larger than the outer diameter of the protrusion; and
a needle protection hub coupled to a proximal end of the needle protection shaft, the needle protection hub comprising a taper portion configured to seat against the ring engagable member,wherein when the needle housing member is disengaged from the release member and the needle housing member is removed from the handle proximally, the protrusion of the needle engages the needle protection hub, the needle protection hub unseats from the ring engagable member, and the needle protection member is also removed from the handle.
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0 Petitions
Accused Products
Abstract
A device for needle biopsy is presented. The device includes a handle member having proximal and distal portions. A proximal handle member is disposed to the proximal portion of the handle member and a distal handle member is disposed to the distal portion of the handle member. A sheath lumen is disposed within the handle member and extends from the distal portion of the handle member. A needle housing member is partially disposed to the proximal portion of the handle member and a needle is disposed within the sheath lumen. A plurality of protrusions is disposed upon the needle. A needle protection member is partially disposed to the distal portion of the needle housing member. The needle protection member includes a needle protection hub and a needle protection shaft.
737 Citations
20 Claims
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1. A needle biopsy device comprising:
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a handle including; an axial lumen spanning the handle; a release member disposed at a proximal end of the handle; and a ring engagable member disposed within the axial lumen and located distal to the release member; a sheath disposed at a distal end of the handle, coaxial with the axial lumen, and extending distally from the distal end of the handle; a removable needle assembly including; an elongated needle comprising a protrusion proximate to a distal end of the needle, the protrusion having an outer diameter; and a needle housing member coupled to a proximal end of the needle, the needle housing member configured to releasably engage the release member; and a needle protection member including; a needle protection shaft surrounding a portion of the elongated needle and comprising a lumen with an inner diameter larger than the outer diameter of the protrusion; and a needle protection hub coupled to a proximal end of the needle protection shaft, the needle protection hub comprising a taper portion configured to seat against the ring engagable member, wherein when the needle housing member is disengaged from the release member and the needle housing member is removed from the handle proximally, the protrusion of the needle engages the needle protection hub, the needle protection hub unseats from the ring engagable member, and the needle protection member is also removed from the handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification